WP-PostRatings Integration

I'm using Atahualpa 3.4.4, WordPress 2.8.4, and WP-PostRatings 1.5.

I call for ratings in the footer, with this code added in the single page footer option:
Copyright &copy, %date('Y')% %author-firstname% %author-lastname% - All Rights Reserved | %tags-linked('Tags: ', ', ', ' | ') %edit(' | ', 'Edit this post', '')% | %wp-postviews% | %wp-postratings% |<strong>%author-firstname% welcomes your rating and comments.</strong>

Is this call for WP-PostRatings sufficient? Or do I need to call for it elsewhere too?

The problem I'm having is that some of my users can't see the rating image at all (I can with the same browser and OS they have). I have seen instances where I can't rate a post even though I had not rated it before. I believe that might be associated with an initial rating of 5 stars, which may be "locking out" other ratings?

Should I be putting the PostRating code <?php if(function_exists('the_ratings')) { the_ratings(); } ?> somewhere else in the options fields or in the index?

Thanks for your help

Coachjerry